examples.txt

insert text into file

tee -a .zsh_local/.zsh_env_local << EOF
export UPDATE='brew update --auto-update && brew upgrade'
export CLIPBOARD='pbcopy'
export FRESH='source ~/.zshrc && source ~/.zprofile'

function code () { VSCODE_CWD="$PWD" open -n -b "com.microsoft.VSCode" --args $* ;}
function updateEnvFile() { gsed -i "/JAVA_HOME=/c export JAVA_HOME=/opt/homebrew/opt/$(ls /opt/homebrew/opt/ | grep openjdk@$1)" ~/Documents/cli/.zsh_env && fresh ;}
function hub() { open -a "Google Chrome" $(cat .git/config | grep url | sed -n 's/url = git@github.com:/https:\/\/github.com\//p') ;}

EOF

function idk() {
  while getopts 'abf:v' flag; do
    case "${flag}" in
      a) a_flag='true' ;;
      b) b_flag='true' ;;
      f) files="${OPTARG}" ;;
      v) verbose='true' ;;
      *) print_usage
        exit 1 ;;
    esac
  done
}
Note: If a character is followed by a colon (e.g. f:), that option is expected to have an argument.
./script -v -a -b -f filename